Thames Valley Police did not confirm exactly where they stationed the mobile camera vans on the road, but Mr Corkin said he 'regularly saw' police vans monitoring the 40mph zone between Bicester and the Vendee Drive roundabout.

He added: "The A41 suffers because of its length.

"It's marked with shrines on the way to Aylesbury, it's quite shocking."

The 40,022 people caught speeding in 2018 marked a sharp drop from the 63,000 offences between June 1, 2017 and June 28 last year.

Ducklington Lane, in Witney, was the third worst location, with 800 motorists caught speeding on the 30mph road.

Meanwhile, the highest speed recorded on Thames Valley Police's fixed penalty system was 95mph on the A34 near Abingdon.

A total of 18,435 people were caught speeding by the county's non-attended cameras, which includes the two Botley Road cameras.

The Oxford Mail revealed last year that the cameras caught 7,998 drivers combined between June 1, 2017 and June 28.

However, Thames Valley Police did not provide a breakdown of offences for each non-attended camera.

Figures revealed in February showed police caught 16 per cent fewer speeding drivers on the A34 in Oxfordshire last year than in 2017, while the number of people pulled over by officers fell by more than 50 per cent.

James Upton, chief inspector of Thames Valley Police Roads Policing, previously told the Oxford Mail the drop was partly explained by a fall in officer numbers in recent years.

This website and associated newspapers adhere to the Independent Press Standards Organisation's Editors' Code of Practice. If you have a complaint about the editorial content which relates to inaccuracy or intrusion, then please contact the editor here. If you are dissatisfied with the response provided you can contact IPSO here